R_A_Filter

this folder contai luekemia data set

首先用雷克子波合成正演地震记录，得到较好的记录结果，然后用此结果进行F-K的波长延拓，得到偏移结果。(The first wave of synthetic forward with Leike Zi seismic records, the records get better results, then use the results of FK wavelength extension, to be offset results.)

稀疏快速傅里叶变换，是一种利用信号频域稀疏特性，只需通过信号部分采样点就可高概率恢复信号频谱的快速傅里叶变换算法。(Sparse Fast Fourier Transformation ，SFFT)

说明：  我不多说废话，这是一个完整的TURBO码的编解码程序，对想做信道编码仿真的人绝对利好，该死的20个字(I will not nonsense, it is a complete code of TURBO codec procedures, right wants to channel coding simulation of absolute good, damned 20 characters)

说明：  城市环境的过程式建模技术研究。。。。。。。。。。(The process of urban environment modeling technology research of)

本论文为自动化系专业毕业设计论文,介绍了一种双数字信号处理器（DSP）最小控制系统，通过此系统实现永磁同步电动机的矢量控制设计。(papers for the automation system design graduation thesis, introduced a dual digital signal processor (DSP) is the smallest control system, through this system to achieve permanent magnet synchronous motor control vector design.)

主要用途是对抗多径衰落。由于多径衰落的存在，使得同一个帧由于路径不同，到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰，影响 性能。另外，由于有了循环前缀，使得IFFT FFT操作把原来的线性卷积变成循环卷积，大大简化了相应的信号处理复杂度(The main purpose is to fight against multipath fading. Due to the presence of multipath fading, the first after they have the same frame different paths to reach the client delay. Would cause mutual interference between sub-carriers in the frequency domain, affecting performance. In addition, thanks to the cyclic prefix, so IFFT FFT operation to the linear convolution of the original into a circular convolution, greatly simplifying the corresponding signal processing complexity)

使用MATLAB实现香农编码，并计算编码率 (Using MATLAB Shannon coding and coding rate was calculated)

搭建simulink仿真框图，使用sisotool工具箱对对象传递函数进行PID参数整定。由上面所得到的PID控制器中PD部分的控制经验可获取模糊控制器的控制规则，设计Mamdany型模糊控制器和T-S型模糊控制器。 (Build a simulink simulation diagram, use sisotool toolbox object transfer function PID parameter tuning. PD control experience PID controller portion obtained by the above control rules can get fuzzy controller design Mamdany TS fuzzy controller and fuzzy controller.)

频谱感知 能量检测算法 SNR -15 -20对比输出结果(energy detection spectrum sensing)